优化读写的写法，方便读写

pom.xml

@@ -56,13 +56,6 @@
     </licenses>
 
     <dependencies>
-        <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
-        <dependency>
-            <groupId>commons-io</groupId>
-            <artifactId>commons-io</artifactId>
-            <version>2.6</version>
-        </dependency>
-
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>

src/main/java/com/alibaba/excel/analysis/v07/XlsxSaxAnalyser.java

@@ -83,6 +83,8 @@ public class XlsxSaxAnalyser implements ExcelExecutor {
         CTWorkbookPr prefix = wb.getWorkbookPr();
         if (prefix != null && prefix.getDate1904()) {
             readWorkbookHolder.getGlobalConfiguration().setUse1904windowing(Boolean.TRUE);
+        } else {
+            readWorkbookHolder.getGlobalConfiguration().setUse1904windowing(Boolean.FALSE);
         }
     }
 

src/main/java/com/alibaba/excel/analysis/v07/handlers/DefaultCellHandler.java

@@ -21,6 +21,7 @@ import com.alibaba.excel.read.metadata.holder.ReadRowHolder;
 import com.alibaba.excel.util.BooleanUtils;
 import com.alibaba.excel.util.PositionUtils;
 import com.alibaba.excel.util.StringUtils;
+
 /**
  * Cell Handler
  *
@@ -84,8 +85,12 @@ public class DefaultCellHandler implements XlsxCellHandler, XlsxRowResultHolder
             ensureSize();
             // Have to go "sharedStrings.xml" and get it
             if (currentCellData.getType() == CellDataTypeEnum.STRING) {
-                currentCellData.setStringValue(analysisContext.readWorkbookHolder().getReadCache()
+                String stringValue = analysisContext.readWorkbookHolder().getReadCache()
-                    .get(Integer.valueOf(currentCellData.getStringValue())));
+                    .get(Integer.valueOf(currentCellData.getStringValue()));
+                if (stringValue != null && analysisContext.currentReadHolder().globalConfiguration().getAutoTrim()) {
+                    stringValue = stringValue.trim();
+                }
+                currentCellData.setStringValue(stringValue);
             }
             curRowContent[curCol] = currentCellData;
         }
@@ -93,7 +98,11 @@ public class DefaultCellHandler implements XlsxCellHandler, XlsxRowResultHolder
         if (CELL_INLINE_STRING_VALUE_TAG.equals(name)) {
             ensureSize();
             XSSFRichTextString richTextString = new XSSFRichTextString(currentCellData.getStringValue());
-            currentCellData.setStringValue(richTextString.toString());
+            String stringValue = richTextString.toString();
+            if (stringValue != null && analysisContext.currentReadHolder().globalConfiguration().getAutoTrim()) {
+                stringValue = stringValue.trim();
+            }
+            currentCellData.setStringValue(stringValue);
             curRowContent[curCol] = currentCellData;
         }
     }

src/main/java/com/alibaba/excel/annotation/ExcelProperty.java

@@ -6,6 +6,9 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import com.alibaba.excel.converters.AutoConverter;
+import com.alibaba.excel.converters.Converter;
+
 /**
  * @author jipengfei
  */
@@ -33,6 +36,13 @@ public @interface ExcelProperty {
      */
     int index() default -1;
 
+    /**
+     * Force the current field to use this converter.
+     *
+     * @return
+     */
+    Class<? extends Converter> converter() default AutoConverter.class;
+
     /**
      *
      * default @see com.alibaba.excel.util.TypeUtil if default is not meet you can set format

src/main/java/com/alibaba/excel/converters/AutoConverter.java

@@ -0,0 +1,36 @@
+package com.alibaba.excel.converters;
+
+import com.alibaba.excel.enums.CellDataTypeEnum;
+import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
+import com.alibaba.excel.metadata.property.ExcelContentProperty;
+
+/**
+ * An empty converter.It's automatically converted by type.
+ *
+ * @author zhuangjiaju
+ */
+public class AutoConverter implements Converter {
+
+    @Override
+    public Class supportJavaTypeKey() {
+        return null;
+    }
+
+    @Override
+    public CellDataTypeEnum supportExcelTypeKey() {
+        return null;
+    }
+
+    @Override
+    public Object convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
+        return null;
+    }
+
+    @Override
+    public CellData convertToExcelData(Object value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
+        return null;
+    }
+}

src/main/java/com/alibaba/excel/converters/Converter.java

@@ -2,6 +2,7 @@ package com.alibaba.excel.converters;
 
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.sun.istack.internal.NotNull;
 import com.sun.istack.internal.Nullable;
@@ -33,18 +34,22 @@ public interface Converter<T> {
      *
      * @param cellData
      * @param contentProperty
+     * @param globalConfiguration
      * @return
      * @throws Exception
      */
-    T convertToJavaData(@NotNull CellData cellData, @Nullable ExcelContentProperty contentProperty) throws Exception;
+    T convertToJavaData(@NotNull CellData cellData, @Nullable ExcelContentProperty contentProperty,
+        @NotNull GlobalConfiguration globalConfiguration) throws Exception;
 
     /**
      * Convert Java objects to excel objects
      *
      * @param value
      * @param contentProperty
+     * @param globalConfiguration
      * @return
      * @throws Exception
      */
-    CellData convertToExcelData(@NotNull T value, @Nullable ExcelContentProperty contentProperty) throws Exception;
+    CellData convertToExcelData(@NotNull T value, @Nullable ExcelContentProperty contentProperty,
+        @NotNull GlobalConfiguration globalConfiguration) throws Exception;
 }

src/main/java/com/alibaba/excel/converters/bigdecimal/BigDecimalBooleanConverter.java

@@ -5,6 +5,7 @@ import java.math.BigDecimal;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class BigDecimalBooleanConverter implements Converter<BigDecimal> {
     }
 
     @Override
-    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return BigDecimal.ONE;
         }
@@ -33,7 +35,8 @@ public class BigDecimalBooleanConverter implements Converter<BigDecimal> {
     }
 
     @Override
-    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (BigDecimal.ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/bigdecimal/BigDecimalNumberConverter.java

@@ -5,6 +5,7 @@ import java.math.BigDecimal;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,12 +26,14 @@ public class BigDecimalNumberConverter implements Converter<BigDecimal> {
     }
 
     @Override
-    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return BigDecimal.valueOf(cellData.getDoubleValue());
     }
 
     @Override
-    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 }

src/main/java/com/alibaba/excel/converters/bigdecimal/BigDecimalStringConverter.java

@@ -5,6 +5,7 @@ import java.math.BigDecimal;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -26,12 +27,14 @@ public class BigDecimalStringConverter implements Converter<BigDecimal> {
     }
 
     @Override
-    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public BigDecimal convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new BigDecimal(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(BigDecimal value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/booleanconverter/BooleanBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.booleanconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class BooleanBooleanConverter implements Converter<Boolean> {
     }
 
     @Override
-    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getBooleanValue();
     }
 
     @Override
-    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value);
     }
 

src/main/java/com/alibaba/excel/converters/booleanconverter/BooleanNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.booleanconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -26,7 +27,8 @@ public class BooleanNumberConverter implements Converter<Boolean> {
     }
 
     @Override
-    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(cellData.getDoubleValue())) {
             return Boolean.TRUE;
         }
@@ -34,7 +36,8 @@ public class BooleanNumberConverter implements Converter<Boolean> {
     }
 
     @Override
-    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (value) {
             return new CellData(ONE);
         }

src/main/java/com/alibaba/excel/converters/booleanconverter/BooleanStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.booleanconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class BooleanStringConverter implements Converter<Boolean> {
     }
 
     @Override
-    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Boolean convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Boolean.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Boolean value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.toString());
     }
 

src/main/java/com/alibaba/excel/converters/byteconverter/ByteBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.byteconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class ByteBooleanConverter implements Converter<Byte> {
     }
 
     @Override
-    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class ByteBooleanConverter implements Converter<Byte> {
     }
 
     @Override
-    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/byteconverter/ByteNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.byteconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class ByteNumberConverter implements Converter<Byte> {
     }
 
     @Override
-    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue().byteValue();
     }
 
     @Override
-    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 

src/main/java/com/alibaba/excel/converters/byteconverter/ByteStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.byteconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class ByteStringConverter implements Converter<Byte> {
     }
 
     @Override
-    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Byte convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Byte.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Byte value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 

src/main/java/com/alibaba/excel/converters/date/DateNumberConverter.java

@@ -7,6 +7,7 @@ import org.apache.poi.hssf.usermodel.HSSFDateUtil;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -27,13 +28,10 @@ public class DateNumberConverter implements Converter<Date> {
     }
 
     @Override
-    public Date convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Date convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null) {
-            Boolean use1904windowing = Boolean.FALSE;
+            return HSSFDateUtil.getJavaDate(cellData.getDoubleValue(), globalConfiguration.getUse1904windowing(), null);
-            if (contentProperty != null && contentProperty.getUse1904windowing() != null) {
-                use1904windowing = contentProperty.getUse1904windowing();
-            }
-            return HSSFDateUtil.getJavaDate(cellData.getDoubleValue(), use1904windowing, null);
         } else {
             return HSSFDateUtil.getJavaDate(cellData.getDoubleValue(),
                 contentProperty.getDateTimeFormatProperty().getUse1904windowing(), null);
@@ -41,7 +39,8 @@ public class DateNumberConverter implements Converter<Date> {
     }
 
     @Override
-    public CellData convertToExcelData(Date value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Date value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData((double)(value.getTime()));
     }
 }

src/main/java/com/alibaba/excel/converters/date/DateStringConverter.java

@@ -6,6 +6,7 @@ import java.util.Date;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.DateUtils;
 
@@ -26,7 +27,8 @@ public class DateStringConverter implements Converter<Date> {
     }
 
     @Override
-    public Date convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) throws ParseException {
+    public Date convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) throws ParseException {
         if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null) {
             return DateUtils.parseDate(cellData.getStringValue(), null);
         } else {
@@ -36,7 +38,8 @@ public class DateStringConverter implements Converter<Date> {
     }
 
     @Override
-    public CellData convertToExcelData(Date value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Date value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null) {
             return new CellData(DateUtils.format(value, null));
         } else {

src/main/java/com/alibaba/excel/converters/doubleconverter/DoubleBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.doubleconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class DoubleBooleanConverter implements Converter<Double> {
     }
 
     @Override
-    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class DoubleBooleanConverter implements Converter<Double> {
     }
 
     @Override
-    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/doubleconverter/DoubleNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.doubleconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class DoubleNumberConverter implements Converter<Double> {
     }
 
     @Override
-    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue();
     }
 
     @Override
-    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value);
     }
 

src/main/java/com/alibaba/excel/converters/doubleconverter/DoubleStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.doubleconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class DoubleStringConverter implements Converter<Double> {
     }
 
     @Override
-    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Double convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Double.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Double value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/floatconverter/FloatBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.floatconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class FloatBooleanConverter implements Converter<Float> {
     }
 
     @Override
-    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class FloatBooleanConverter implements Converter<Float> {
     }
 
     @Override
-    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/floatconverter/FloatNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.floatconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class FloatNumberConverter implements Converter<Float> {
     }
 
     @Override
-    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue().floatValue();
     }
 
     @Override
-    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 

src/main/java/com/alibaba/excel/converters/floatconverter/FloatStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.floatconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class FloatStringConverter implements Converter<Float> {
     }
 
     @Override
-    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Float convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Float.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Float value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/integer/IntegerBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.integer;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class IntegerBooleanConverter implements Converter<Integer> {
     }
 
     @Override
-    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class IntegerBooleanConverter implements Converter<Integer> {
     }
 
     @Override
-    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/integer/IntegerNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.integer;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class IntegerNumberConverter implements Converter<Integer> {
     }
 
     @Override
-    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue().intValue();
     }
 
     @Override
-    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 

src/main/java/com/alibaba/excel/converters/integer/IntegerStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.integer;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class IntegerStringConverter implements Converter<Integer> {
     }
 
     @Override
-    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Integer convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Integer.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Integer value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/longconverter/LongBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.longconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class LongBooleanConverter implements Converter<Long> {
     }
 
     @Override
-    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class LongBooleanConverter implements Converter<Long> {
     }
 
     @Override
-    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/longconverter/LongNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.longconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class LongNumberConverter implements Converter<Long> {
     }
 
     @Override
-    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue().longValue();
     }
 
     @Override
-    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 

src/main/java/com/alibaba/excel/converters/longconverter/LongStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.longconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class LongStringConverter implements Converter<Long> {
     }
 
     @Override
-    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Long convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Long.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Long value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/shortconverter/ShortBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.shortconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -25,7 +26,8 @@ public class ShortBooleanConverter implements Converter<Short> {
     }
 
     @Override
-    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (cellData.getBooleanValue()) {
             return ONE;
         }
@@ -33,7 +35,8 @@ public class ShortBooleanConverter implements Converter<Short> {
     }
 
     @Override
-    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         if (ONE.equals(value)) {
             return new CellData(Boolean.TRUE);
         }

src/main/java/com/alibaba/excel/converters/shortconverter/ShortNumberConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.shortconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class ShortNumberConverter implements Converter<Short> {
     }
 
     @Override
-    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getDoubleValue().shortValue();
     }
 
     @Override
-    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value.doubleValue());
     }
 

src/main/java/com/alibaba/excel/converters/shortconverter/ShortStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.shortconverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.NumberUtils;
 
@@ -24,12 +25,14 @@ public class ShortStringConverter implements Converter<Short> {
     }
 
     @Override
-    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public Short convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return Short.valueOf(cellData.getStringValue());
     }
 
     @Override
-    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(Short value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return NumberUtils.formatToCellData(value, contentProperty);
     }
 }

src/main/java/com/alibaba/excel/converters/string/StringBooleanConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.string;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -23,12 +24,14 @@ public class StringBooleanConverter implements Converter<String> {
     }
 
     @Override
-    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getBooleanValue().toString();
     }
 
     @Override
-    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(Boolean.valueOf(value));
     }
 

src/main/java/com/alibaba/excel/converters/string/StringErrorConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.string;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -22,12 +23,14 @@ public class StringErrorConverter implements Converter<String> {
     }
 
     @Override
-    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getStringValue();
     }
 
     @Override
-    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(CellDataTypeEnum.ERROR, value);
     }
 

src/main/java/com/alibaba/excel/converters/string/StringNumberConverter.java

@@ -5,6 +5,7 @@ import org.apache.poi.hssf.usermodel.HSSFDateUtil;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.util.DateUtils;
 import com.alibaba.excel.util.NumberUtils;
@@ -27,7 +28,8 @@ public class StringNumberConverter implements Converter<String> {
     }
 
     @Override
-    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         // If there are "DateTimeFormat", read as date
         if (contentProperty != null && contentProperty.getDateTimeFormatProperty() != null) {
             return DateUtils.format(
@@ -40,7 +42,8 @@ public class StringNumberConverter implements Converter<String> {
     }
 
     @Override
-    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(Double.valueOf(value));
     }
 }

src/main/java/com/alibaba/excel/converters/string/StringStringConverter.java

@@ -3,6 +3,7 @@ package com.alibaba.excel.converters.string;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 
 /**
@@ -22,12 +23,14 @@ public class StringStringConverter implements Converter<String> {
     }
 
     @Override
-    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty) {
+    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return cellData.getStringValue();
     }
 
     @Override
-    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty) {
+    public CellData convertToExcelData(String value, ExcelContentProperty contentProperty,
+        GlobalConfiguration globalConfiguration) {
         return new CellData(value);
     }
 

src/main/java/com/alibaba/excel/metadata/AbstractHolder.java

@@ -10,7 +10,7 @@ import com.alibaba.excel.converters.Converter;
  *
  * @author zhuangjiaju
  */
-public abstract class AbstractHolder implements Holder {
+public abstract class AbstractHolder implements ConfigurationHolder {
     /**
      * Record whether it's new or from cache
      */

src/main/java/com/alibaba/excel/metadata/ConfigurationHolder.java

@@ -0,0 +1,36 @@
+package com.alibaba.excel.metadata;
+
+import java.util.Map;
+
+import com.alibaba.excel.converters.Converter;
+
+/**
+ *
+ * Get the corresponding holder
+ *
+ * @author zhuangjiaju
+ **/
+public interface ConfigurationHolder extends Holder {
+
+    /**
+     *
+     * Record whether it's new or from cache
+     *
+     * @return
+     */
+    boolean isNew();
+
+    /**
+     * Some global variables
+     *
+     * @return
+     */
+    GlobalConfiguration globalConfiguration();
+
+    /**
+     * What converter does the currently operated cell need to execute
+     *
+     * @return
+     */
+    Map<String, Converter> converterMap();
+}

src/main/java/com/alibaba/excel/metadata/Holder.java

@@ -1,8 +1,5 @@
 package com.alibaba.excel.metadata;
 
-import java.util.Map;
-
-import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.HolderEnum;
 
 /**
@@ -20,25 +17,4 @@ public interface Holder {
      */
     HolderEnum holderType();
 
-    /**
-     * 
-     * Record whether it's new or from cache
-     * 
-     * @return
-     */
-    boolean isNew();
-
-    /**
-     * Some global variables
-     * 
-     * @return
-     */
-    GlobalConfiguration globalConfiguration();
-
-    /**
-     * What converter does the currently operated cell need to execute
-     *
-     * @return
-     */
-    Map<String, Converter> converterMap();
 }

src/main/java/com/alibaba/excel/metadata/property/ExcelContentProperty.java

@@ -2,6 +2,7 @@ package com.alibaba.excel.metadata.property;
 
 import java.lang.reflect.Field;
 
+import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.metadata.Head;
 
 /**
@@ -16,17 +17,13 @@ public class ExcelContentProperty {
      * Excel head
      */
     private Head head;
+    /**
+     * Custom defined converters
+     */
+    private Converter converter;
     private CellStyleProperty cellStyleProperty;
     private DateTimeFormatProperty dateTimeFormatProperty;
     private NumberFormatProperty numberFormatProperty;
-    /**
-     * true if date uses 1904 windowing, or false if using 1900 date windowing.
-     *
-     * default is false
-     * 
-     * @return
-     */
-    private Boolean use1904windowing;
 
     public Field getField() {
         return field;
@@ -68,11 +65,11 @@ public class ExcelContentProperty {
         this.numberFormatProperty = numberFormatProperty;
     }
 
-    public Boolean getUse1904windowing() {
+    public Converter getConverter() {
-        return use1904windowing;
+        return converter;
     }
 
-    public void setUse1904windowing(Boolean use1904windowing) {
+    public void setConverter(Converter converter) {
-        this.use1904windowing = use1904windowing;
+        this.converter = converter;
     }
 }

src/main/java/com/alibaba/excel/metadata/property/ExcelHeadProperty.java

@@ -14,7 +14,10 @@ import com.alibaba.excel.annotation.ExcelIgnore;
 import com.alibaba.excel.annotation.ExcelProperty;
 import com.alibaba.excel.annotation.format.DateTimeFormat;
 import com.alibaba.excel.annotation.format.NumberFormat;
+import com.alibaba.excel.converters.AutoConverter;
+import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.enums.HeadKindEnum;
+import com.alibaba.excel.exception.ExcelCommonException;
 import com.alibaba.excel.exception.ExcelGenerateException;
 import com.alibaba.excel.metadata.Head;
 import com.alibaba.excel.util.StringUtils;
@@ -162,6 +165,17 @@ public class ExcelHeadProperty {
         }
         Head head = new Head(index, field.getName(), tmpHeadList, forceIndex);
         ExcelContentProperty excelContentProperty = new ExcelContentProperty();
+        if (excelProperty != null && excelProperty.converter() != null) {
+            Class<? extends Converter> convertClazz = excelProperty.converter();
+            if (convertClazz != AutoConverter.class) {
+                try {
+                    Converter converter = convertClazz.newInstance();
+                    excelContentProperty.setConverter(converter);
+                } catch (Exception e) {
+                    throw new ExcelCommonException("Can not instance custom converter:" + convertClazz.getName());
+                }
+            }
+        }
         excelContentProperty.setHead(head);
         excelContentProperty.setField(field);
         excelContentProperty

src/main/java/com/alibaba/excel/parameter/GenerateParam.java

@@ -7,6 +7,7 @@ import com.alibaba.excel.support.ExcelTypeEnum;
 /**
  * Created by jipengfei on 17/2/19.
  *
+ * @author jipengfei
  * @deprecated please use {@link com.alibaba.excel.write.builder.ExcelWriterBuilder} build ExcelWriter
  */
 @Deprecated

src/main/java/com/alibaba/excel/read/listener/ModelBuildEventListener.java

@@ -13,6 +13,7 @@ import com.alibaba.excel.enums.HeadKindEnum;
 import com.alibaba.excel.event.AbstractIgnoreExceptionReadListener;
 import com.alibaba.excel.exception.ExcelDataConvertException;
 import com.alibaba.excel.metadata.CellData;
+import com.alibaba.excel.metadata.GlobalConfiguration;
 import com.alibaba.excel.metadata.Head;
 import com.alibaba.excel.metadata.property.ExcelContentProperty;
 import com.alibaba.excel.read.metadata.holder.ReadHolder;
@@ -40,7 +41,8 @@ public class ModelBuildEventListener extends AbstractIgnoreExceptionReadListener
     private Object buildStringList(List<CellData> data, ReadHolder currentReadHolder) {
         List<String> list = new ArrayList<String>();
         for (CellData cellData : data) {
-            list.add((String)convertValue(cellData, String.class, null, currentReadHolder.converterMap()));
+            list.add((String)convertValue(cellData, String.class, null, currentReadHolder.converterMap(),
+                currentReadHolder.globalConfiguration()));
         }
         return list;
     }
@@ -54,8 +56,8 @@ public class ModelBuildEventListener extends AbstractIgnoreExceptionReadListener
             throw new ExcelDataConvertException(
                 "Can not instance class: " + excelReadHeadProperty.getHeadClazz().getName(), e);
         }
-        Map<String, Object> map = new HashMap<String, Object>();
         Map<Integer, Head> headMap = excelReadHeadProperty.getHeadMap();
+        Map<String, Object> map = new HashMap<String, Object>(headMap.size() * 4 / 3 + 1);
         Map<Integer, ExcelContentProperty> contentPropertyMap = excelReadHeadProperty.getContentPropertyMap();
         for (Map.Entry<Integer, Head> entry : headMap.entrySet()) {
             Integer index = entry.getKey();
@@ -68,7 +70,7 @@ public class ModelBuildEventListener extends AbstractIgnoreExceptionReadListener
             }
             ExcelContentProperty excelContentProperty = contentPropertyMap.get(index);
             Object value = convertValue(cellData, excelContentProperty.getField().getType(), excelContentProperty,
-                currentReadHolder.converterMap());
+                currentReadHolder.converterMap(), currentReadHolder.globalConfiguration());
             if (value != null) {
                 map.put(excelContentProperty.getField().getName(), value);
             }
@@ -78,14 +80,20 @@ public class ModelBuildEventListener extends AbstractIgnoreExceptionReadListener
     }
 
     private Object convertValue(CellData cellData, Class clazz, ExcelContentProperty contentProperty,
-        Map<String, Converter> converterMap) {
+        Map<String, Converter> converterMap, GlobalConfiguration globalConfiguration) {
-        Converter converter = converterMap.get(ConverterKeyBuild.buildKey(clazz, cellData.getType()));
+        Converter converter = null;
+        if (contentProperty != null) {
+            converter = contentProperty.getConverter();
+        }
+        if (converter == null) {
+            converter = converterMap.get(ConverterKeyBuild.buildKey(clazz, cellData.getType()));
+        }
         if (converter == null) {
             throw new ExcelDataConvertException(
                 "Converter not found, convert " + cellData.getType() + " to " + clazz.getName());
         }
         try {
-            return converter.convertToJavaData(cellData, contentProperty);
+            return converter.convertToJavaData(cellData, contentProperty, globalConfiguration);
         } catch (Exception e) {
             throw new ExcelDataConvertException("Convert data " + cellData + " to " + clazz + " error ", e);
         }

src/main/java/com/alibaba/excel/read/listener/ReadListenerRegistryCenter.java

@@ -28,6 +28,7 @@ public interface ReadListenerRegistryCenter {
     void notifyEndOneRow(AnalysisFinishEvent event, AnalysisContext analysisContext);
 
     /**
+     * Notify after all analysed
      * 
      * @param analysisContext
      */

src/main/java/com/alibaba/excel/read/listener/event/AnalysisFinishEvent.java

@@ -1,5 +1,16 @@
 package com.alibaba.excel.read.listener.event;
 
+/**
+ * 
+ * Event
+ * 
+ * @author jipengfei
+ */
 public interface AnalysisFinishEvent {
+    /**
+     * Get result
+     * 
+     * @return
+     */
     Object getAnalysisResult();
 }

src/main/java/com/alibaba/excel/read/metadata/holder/AbstractReadHolder.java

@@ -189,7 +189,7 @@ public abstract class AbstractReadHolder extends AbstractHolder implements ReadH
                     "Converter not found, convert " + cellData.getType() + " to String");
             }
             try {
-                list.add((String)(converter.convertToJavaData(cellData, null)));
+                list.add((String)(converter.convertToJavaData(cellData, null, readHolder.globalConfiguration())));
             } catch (Exception e) {
                 throw new ExcelDataConvertException("Convert data " + cellData + " to String error ", e);
             }

src/main/java/com/alibaba/excel/read/metadata/holder/ReadHolder.java

@@ -2,7 +2,7 @@ package com.alibaba.excel.read.metadata.holder;
 
 import java.util.List;
 
-import com.alibaba.excel.metadata.Holder;
+import com.alibaba.excel.metadata.ConfigurationHolder;
 import com.alibaba.excel.read.listener.ReadListener;
 import com.alibaba.excel.read.metadata.property.ExcelReadHeadProperty;
 
@@ -12,7 +12,7 @@ import com.alibaba.excel.read.metadata.property.ExcelReadHeadProperty;
  *
  * @author zhuangjiaju
  **/
-public interface ReadHolder extends Holder {
+public interface ReadHolder extends ConfigurationHolder {
     /**
      * What handler does the currently operated cell need to execute
      *

src/main/java/com/alibaba/excel/read/metadata/holder/ReadRowHolder.java

@@ -1,13 +1,15 @@
 package com.alibaba.excel.read.metadata.holder;
 
+import com.alibaba.excel.enums.HolderEnum;
 import com.alibaba.excel.metadata.GlobalConfiguration;
+import com.alibaba.excel.metadata.Holder;
 
 /**
  * sheet holder
  *
  * @author zhuangjiaju
  */
-public class ReadRowHolder {
+public class ReadRowHolder implements Holder {
     /**
      * Returns row index of a row in the sheet that contains this cell.Start form 0.
      */
@@ -50,4 +52,9 @@ public class ReadRowHolder {
     public void setRowIndex(int rowIndex) {
         this.rowIndex = rowIndex;
     }
+
+    @Override
+    public HolderEnum holderType() {
+        return HolderEnum.ROW;
+    }
 }

src/main/java/com/alibaba/excel/write/ExcelBuilderImpl.java

@@ -76,7 +76,6 @@ public class ExcelBuilderImpl implements ExcelBuilder {
     @Override
     public void addContent(List data, WriteSheet writeSheet, WriteTable writeTable) {
         try {
-
             context.currentSheet(writeSheet);
             context.currentTable(writeTable);
             doAddContent(data);
@@ -254,15 +253,21 @@ public class ExcelBuilderImpl implements ExcelBuilder {
         if (value == null) {
             return;
         }
-        Converter converter = currentWriteHolder.converterMap().get(ConverterKeyBuild.buildKey(clazz));
+        if (value instanceof String && currentWriteHolder.globalConfiguration().getAutoTrim()) {
+            value = ((String)value).trim();
+        }
+        Converter converter = excelContentProperty.getConverter();
+        if (converter == null) {
+            converter = currentWriteHolder.converterMap().get(ConverterKeyBuild.buildKey(clazz));
+        }
         if (converter == null) {
             throw new ExcelDataConvertException(
                 "Can not find 'Converter' support class " + clazz.getSimpleName() + ".");
         }
-
         CellData cellData;
         try {
-            cellData = converter.convertToExcelData(value, excelContentProperty);
+            cellData =
+                converter.convertToExcelData(value, excelContentProperty, currentWriteHolder.globalConfiguration());
         } catch (Exception e) {
             throw new ExcelDataConvertException("Convert data:" + value + " error,at row:" + cell.getRow().getRowNum(),
                 e);

src/main/java/com/alibaba/excel/write/metadata/holder/WriteHolder.java

@@ -3,7 +3,7 @@ package com.alibaba.excel.write.metadata.holder;
 import java.util.List;
 import java.util.Map;
 
-import com.alibaba.excel.metadata.Holder;
+import com.alibaba.excel.metadata.ConfigurationHolder;
 import com.alibaba.excel.write.handler.WriteHandler;
 import com.alibaba.excel.write.property.ExcelWriteHeadProperty;
 
@@ -13,7 +13,7 @@ import com.alibaba.excel.write.property.ExcelWriteHeadProperty;
  *
  * @author zhuangjiaju
  **/
-public interface WriteHolder extends Holder {
+public interface WriteHolder extends ConfigurationHolder {
     /**
      * What 'ExcelWriteHeadProperty' does the currently operated cell need to execute
      */